Draft-rigging for railway-cars.



Fig. l

' F. OCONNOR.

[JR-AFT RiGGLNG FOR RAILWAY CARS.

APPLICATION, FILED m-AY 21. 1911.

1,288,662, Patented De@ 21g` 19,18.

ATTOR Y -performs the JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR TOWILLIAM H. MINER, OF CI-IAZY, NEW YORK.

DRAFT-RIGGING FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented nee. ze', 191s.

Application led May 21, 1917. Serial No. 170,022.

. a citizen of the United States, residing at Chicago, in the county ofCook and State of Illinois, have invented a certain new and usefulImprovement in Draft-Rigging for Railwayars, of which the following is afull, clear, concise, and exact description, reference being had to theaccompanying drawings, forming a part of this specification.

My invention relates to improvements in draft rigging for railway cars.

The object of my invention is to provide a simple and efficient draftrigging.

In the drawings forming a part of this specification, Figure 1 is ahorizontal section of a draft rigging embodying my invention; Fig. 2 isa cross section taken on line Q-Q of Fig. 1. Fig. 3 is a partiallongitudinal vertical sectionl taken on lines 3 3 of Fig. l. Fig. 4 is aperspective view of one of the movable plates. Fig. 5 is a perspectiveview of one of the stationary plates.

Referring to the drawings, the numerals 10-10 indicate center sills fora draft member, being parts of the car underframe to which the draftrigging is applied. Front stop members are shown at 11--l1; rear stopmembers at 1212- The draft gear is indicated at 13, the same beingsupported by the tie-plate 14, which is removably secured to the draftmember as, for instance, by the bolts 15--15. A yoke 16 connects thedraft gear to the draw-bar 17. The.v front follower 18 is of a usualtype and usual functionf The draft gear 18 comprises a shell 19. Theshell is open at its front end and closed at its rear end by thepreferably integral plate 20 which performsl the function of a rearfollower. At its front end the shell is provided with a ,series ofspaced-apart stationary plates 21 arranged in sets Q2 and 23` on eitherside of the open forward end of the shell. Movable plates 24 arealternately ari' ,ranged between the stationary plates 21.

An internal follower 25 is mounted between the shell. Interposed betweenit, and the closed rear end of the shell are the springs 26-2G- Meng itsforward face the internal follower Q5, is provided with the mortises 2727 to receive the double tenons 28-28 with which the rear edges of themovable plate 24 are provided. In this manner the movable plates aresecured to the internal follower 25. The stationary plates 21 areprovided with upper and lower notches or grooves 29-29 to receive withinthem the transverse rib-s or keys 30--30 with which the shell isprovided. By means of this arrangement, the stationary plates '21 arelheld against longitudinal movement, but

are permitted a slight lateral movementv as required. Spreading members31-32 are mounted between the two sets of plates 22 and 23, and includethe rear wedge 31 which engages theinternal follower 25 the front wedges32-32 which engage the front follower 18, which members are adapted tospread to force the movable and immovable or stationary friction platesinto frictional engagement with each other.

On rearward movement of the draw-bar, the front follower forces thespreading members into wedging engagement against the set of frictionplates on either side thereof, the internal follower is forcedrearwardly, thus drawing'rearwardly the mov- `able plates which aremeanwhile engaged frictionally by the stationary plate, the rearwardmovement of the internal follower 25 being also resisted by the springs26-26.

'In the form of my invention shown in the drawings, the friction platesare arranged at an angle to theaXis of the shell, to, thus cause aflexing of the plates and give a higher frictional resistance.

On forward movement of the draw-bar, the shell is drawn forwardly bymeans of the yoke, the wedges 32-32 are stopped by the front follower18, and the action of the parts within the shell is similar' to thatupon bufling movement.

I claim:

`1. In a draft rigging for railway cars, a shell, springs within theshell, an internal follower lassociated with said springs, movablefriction plates connected to the internal follower, stationary frictionplates associated with the movable plates, and spreading means to forcethe movable and stationary friction plates into frictional engagementwith each other.

2. In a draft rigging for railway cars, in combination: a shell;alternately arranged movable and stationary friction plates in saidshell; means to force said plates intofrictional engagement with eachother;

sprin means to resist the movement of the mova le .r1ct1on plates; meansassoclated with the movable plates to impart motion,l

thereto; the friction plates being angularly arranged to the axis of theshell, whereby the movablev plateswill be flexed onvlnovey ment, v v

8, In a draftA rigging forrailway carsz in combination: a shell;stationary friction plates associated therewith; j'movable fricf tionplates alternately arranged between the stationary plates ;l means toforce said plates into frictional engagement with each other; afollower' connecte spring means to resist the movement ofsaid plates;the said plates being obliquel ar,- ranged in reference to the vams ofthe s elle.

4. En a draft rigging, in combination; a.

shell; stationary friction lates and movable friction lates lassociatetherewith within said she l; wedging means forcing said plates intoengagement with each other; a follower and springs; the follower andthemovableplates being provided with interengaging'l securing means ;I saidfriction to the movable plates;-

Laeaeca plates being obliquely arranged in reference friction platesyattached theretj`"spring V- i means between said follower and the\shelends of the movable friction plates, said Wedging means' beinginterposed between to transmit pressurelongitudinally from the outerfollower to the inner follower whereby the latter pulls the movablefriction plates relatively t0 theshell. i 4

yIn witness that l` claim the foregoing I have hereunto subscribed myname this th day 0f April, 191.7."v

. im Outside follower spaced from the adjacent: l

. said inner and outer followers and adapted

